I think it's a scam I never applied for a pay day loan but received a call from this number being preapproved for $1,500 with a preapproved code to enter on the website that's has no contact info and there's no way to talk to a live person to stop the calls.
You may want to take a closer look at your 'actual website':
Creation Date: 11-mar-2015 (Recent registration)
Expiration Date: 11-mar-2016 (For only 1 year)
Registrant Name: WHOISGUARD PROTECTED (Private Proxy)
Registrant City: PANAMA (Central America registration)
I'll leave it with you.
The call sends you a recorded message saying you've been approved for up to $1,500 with a special code to enter in the website. If you go to the website all you can do is enter your information and the code. There is no company information, no support email, NOTHING. Just a webform. This looks VERY SCAMMY.